The
author, searching for possible neurological anomalies behind
a learning disability, came upon the theory that faulty lateralization
is implicated in reading difficulties. This paper is an account
of her efforts to induce pupils to use primarily the left
hemisphere in learning to read, and of some of the results.

The corpus
callosum has three main functions: to act as a bridge between
the hemispheres, transferring signals from one side to the other,
to allocate neural space in the proper location for processing,
and to control arousal and sustained attention during processing.
In dyslexia, the corpus callosum is a slow transmitter of information.
In addition, verbal input is not allocated to the angular gyrus
where it ought to be, and focus and sustained attention are
notoriously weak. Finally, a teaching method that by-passes
the corpus callosum gives dramatic results in the dyslectic
student. The author suggests that these facts imply that a faulty
corpus callosum is a crucial component of the source of dyslexia.